новости компании о New Stock Alert Chain Wheel Sprocket 4812027420 for BF980C SD2500 SD2530 SD2550 Asphalt Pavers

Contractors running older asphalt paver fleets know the problem well: the feeding shaft sprocket wears, the chain starts to jump, and suddenly a single machine is down while the team hunts for a replacement that will actually fit. From this month, the 4812027420 chain wheel sprocket is held in regular stock and covers four widely used paver models in one part number, which means fewer separate references on the shelf and a shorter route back to paving.

The chain wheel sits at the end of the feeding shaft and takes the full load of the conveyor chain, hot aggregate dust and constant stop-start cycles. When the tooth profile rounds off, the chain rides higher on the teeth, tension changes and the drive starts to slip or jump under load. Left alone, this turns a low cost wear part into an expensive repair: stretched chain, damaged shaft splines and lost paving hours.

Replacing the sprocket at the right moment keeps chain pitch correct and protects the rest of the feeding system. The practical question for most workshops is not whether to replace it, but whether the part in the box matches the machine on site.

• Forged blank instead of cast. A forged body gives a denser grain structure, which resists tooth deformation when the conveyor chain shocks the sprocket on every start.
• Machined tooth profile. Teeth are cut to the original chain pitch so the chain seats correctly and wear stays even across the full tooth width.
• Keyed and flanged hub. The keyway and flange bolt pattern hold the sprocket concentric on the shaft after installation, which keeps chain tension stable in service.
• Complete, ready to bolt on. Supplied as a finished chain wheel, so the job is a direct replacement rather than a machining project.

Each batch is inspected against the original sample before it is packed. The checks cover tooth count and pitch, hub bore and keyway dimensions, flange bolt spacing, hub hardness and a visual check of the machined surfaces. Any sprocket that fails a dimensional check is rejected at inspection rather than shipped and returned. Packaging uses carton or pallet with export grade protection so the machined tooth faces arrive without impact damage.

Monthly capacity for this reference is around 100 pieces, and normal stock orders leave within 3 to 14 days after payment. Shipments run FOB Shanghai or EXW factory, with CIF quotes available once the destination port is confirmed. Because the same reference covers four machine models, a mixed fleet order can be consolidated into a single shipment.

How do I confirm the sprocket fits my machine?
Send the machine model, a photo of the old sprocket and the 4812027420 stamp. We confirm tooth count, hub size and keyway before shipment.

Is there a minimum order?
MOQ is 1 piece, so a single machine repair can be covered without opening a bulk order.

Do you supply the matching chain?
Chain and other feeding system parts can be quoted together with the sprocket on request, so the whole drive can be refreshed in one shipment.

Tell us the paver model and the quantity you need, and we will reply with stock status, price and the earliest shipping date within one working day. For fleet maintenance teams, we can also hold a small buffer stock against your service schedule so the next replacement is already on the shelf.